Hey pintsize,
I remember a few years ago comming home with the mrs from Clacton I took a detour as you do and dis a lane off the A10 near standon we met a few guys from Burnham offroaders they manage to fall into a ditch and they were using waffle boards to ge themselves out I gave them a hand and drove through it and followed them for a while they were all nice chaps one had an old Rangerover with a Perkins engine and a few with disco's must say they were very nice chaps indeed! I have the guys phone number around here somewhere.
And Roundhill woods (as long as you can do some of the more crazy bomb holes) is a great site trialled there more than a few times Jai